Abstract
It is economically important that the cows remain for a longer period in the herd, since the possibility of returning the investment of the rearing costs of the heifers for the replacement of the herd is greater. Stayability (STAY) is one of the traits used to evaluate the longevity of the cows. Defined as the presence or not of the cow in the herd up to a specific age, STAY is a binary t…